FX-Sport VRX Premium Wireless Sport Headphones, Earphones with Fully Customizable Trainer. 8GB Waterproof Mp3 Player. Hundreds of Workouts Preloaded. Includes Swimming and Running Programs World's first wireless, customizable personal trainer headphones. Engineered in the UK. 8GB Premium Quality Mp3 Player Built in. Text to Speech software voices album names to the user. Sweatproof/Rainproof. Bass and Treble Settings. UPDATE: Now with NEW Custom speakers. An extra embedded amp gives a more powerful depth of bass and volume. Now arrives PRELOADED with hundreds of professionally constructed workouts in many categories and for all levels of fitness. Workouts also include "Real Trainer" workouts, which are the real voice and workouts of top personal trainers, coaches and athletes for that "one to one" experience. Alternatively, CUSTOMIZE YOUR OWN WORKOUT with instruction, time notifications and motivational messages in your own words. Also Race a Virtual Athlete - Race or Pace mode. Hundreds of training sessions with whole 12 week programmes are preloaded and scrolled through with ease, directly on the unit, along side your own music library. Latest firmware, faster charge time, 5 hrs battery life [with no drain when not in use] and low battery "beep" indicator. All preloaded workouts are from the FX-SPORT "Workout Store". Instructional messages play at designated times over your own music. Many different fitness categories and training programmes all held directly on the unit. All functionality applicable for swimming using the waterproof Silicone Skin Accessory [bought separately]. A fully tested methodology which delivers great audio above and below the water and for consistently vigorous swimming.